UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 8-K

                                 CURRENT REPORT
     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


      Date of Report (Date of earliest event reported): September 30, 2004




                        Pioneer Natural Resources Company
             -----------------------------------------------------
             (Exact name of Registrant as specified in its charter)



          Delaware                    1-13245                75-2702753
----------------------------        ------------        -------------------
(State or other jurisdiction        (Commission          (I.R.S. Employer
     of incorporation)              File Number)        Identification No.)



5205 N. O'Connor Blvd., Suite 900, Irving, Texas               75039
------------------------------------------------             ----------
    (Address of principal executive offices)                 (Zip Code)


                                 (972) 444-9001
              ----------------------------------------------------
              (Registrant's telephone number, including area code)



                                 Not applicable
          -------------------------------------------------------------
          (Former name or former address, if changed since last report)


Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions:

| | Written communications pursuant to Rule 425 under the Securities Act (17 CFR
    230.425)
| | Soliciting material pursuant to  Rule 14a-12  under the Exchange Act (17 CFR
    240.14a-12)
| | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))
| | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))








                        PIONEER NATURAL RESOURCES COMPANY

                                TABLE OF CONTENTS


                                                                        Page

Item 1.01.  Entry into a Material Definitive Agreement.............      3

Item 9.01.  Financial Statements and Exhibits

            (c)   Exhibits.........................................      3

Signature..........................................................      4

Exhibit Index......................................................      5



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                        PIONEER NATURAL RESOURCES COMPANY


Item 1.01.   Entry into a Material Definitive Agreement

     On September 30, 2004,  Pioneer Natural  Resources  Company (the "Company")
issued:  (i) the Third  Supplemental  Indenture  dated  September  30, 2004 with
respect to the Evergreen Resources,  Inc. ("Evergreen") indenture dated December
18, 2001,  relating to the 4.75% Senior  Convertible  Notes due 2021 (the "4.75%
Notes"),  that is attached  hereto as exhibit 4.1, (ii) the Fourth  Supplemental
Indenture dated  September 30, 2004 with respect to Evergreen's  indenture dated
December  18,  2001,  relating to the 4.75%  Notes,  that is attached  hereto as
exhibit 4.2, (iii) the Second  Supplemental  Indenture  dated September 30, 2004
with respect to  Evergreen's  indenture  dated March 10,  2004,  relating to the
5.875% Senior Subordinated Notes due 2012 (the "5.875% Notes"), that is attached
hereto as exhibit 4.3 and (iv) the Third Supplemental  Indenture dated September
30, 2004 with respect to Evergreen's indenture dated March 10, 2004, relating to
the 5.875%  Notes,  that is attached  hereto as exhibit 4.4. The 4.75% Notes and
the 5.875% Notes were assumed by the Company in  conjunction  with the Evergreen
merger on September 28, 2004.


     On November 1, 2004,  the Company issued the Fourth  Supplemental  Indentur
dated  November 1, 2004 with respect to  Evergreen's  indenture  dated March 10,
2004, relating to the 5.875% Notes, that is attached hereto as exhibit 4.5.

Item 9.01. Financial Statements and Exhibits

       (c) Exhibits

           4.1    Third Supplemental  Indenture dated  as of September 30, 2004,
                  among the  Company, Pioneer Debt Sub,  LLC and  Wachovia Bank,
                  National  Association  (as  successor to  First Union National
                  Bank),  as trustee,  with respect to the indenture dated as of
                  December 18, 2001,  among Evergreen and  First Union  Bank, as
                  trustee, relating to the 4.75% Notes.
           4.2    Fourth Supplemental Indenture dated as of  September 30, 2004,
                  among the  Company and Wachovia Bank, National Association (as
                  successor to First  Union National  Bank),  as  trustee,  with
                  respect to the indenture  identified dated as of  December 18,
                  2001,  among  Evergreen  and  First  Union  Bank,  as trustee,
                  relating to the 4.75% Notes.
           4.3    Second Supplemental Indenture dated as of  September 30, 2004,
                  among  Pioneer  Debt  Sub,  LLC  and  Wachovia Bank,  National
                  Association, as trustee, with respect  to the  indenture dated
                  as of  March  10,  2004,  among  Evergreen and  Wachovia Bank,
                  National  Association,  as  trustee,  relating  to the  5.875%
                  Notes.
           4.4    Third Supplemental Indenture  dated as of  September 30, 2004,
                  among the  Company and Wachovia Bank, National Association, as
                  trustee,  with respect to the  indenture dated as of March 10,
                  2004, among Evergreen and Wachovia Bank, National Association,
                  as trustee, relating to the 5.875% Notes.
           4.5    Fourth Supplemental  Indenture dated  as of November 1,  2004,
                  among the  Company,  Pioneer Natural Resources USA,  Inc.,  as
                  guarantor,   and  Wachovia  Bank,   National  Association,  as
                  trustee,  with respect to the indenture  dated as of March 10,
                  2004, among Evergreen and Wachovia Bank, National Association,
                  as trustee, relating to the 5.875% Notes.


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                       PIONEER NATURAL RESOURCES COMPANY

                               S I G N A T U R E


Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                                 PIONEER NATURAL RESOURCES COMPANY




Date: November 4, 2004           By: /s/ Richard P. Dealy
                                     --------------------------------------
                                     Richard P. Dealy
                                     Vice President and Chief Accounting Officer



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                       PIONEER NATURAL RESOURCES COMPANY

                                 EXHIBIT INDEX

Exhibit No.         Description
-----------         -----------


  4.1(a)            Third Supplemental Indenture dated as of September 30, 2004,
                    among the Company, Pioneer Debt Sub, LLC and  Wachovia Bank,
                    National Association  (as successor to First  Union National
                    Bank), as trustee, with respect to the indenture dated as of
                    December 18, 2001,  among Evergreen and First Union Bank, as
                    trustee, relating to the 4.75% Notes.
  4.2(a)            Fourth  Supplemental Indenture  dated  as of  September  30,
                    2004,  among  the  Company  and  Wachovia   Bank,   National
                    Association (as successor to  First Union National Bank), as
                    trustee,  with respect t o the indenture identified dated as
                    of December 18 2001,  among Evergreen  and First Union Bank,
                    as trustee, relating to the 4.75% Notes.
  4.3(a)            Second  Supplemental  Indenture  dated  as of  September 30,
                    2004,  among  Pioneer  Debt  Sub,  LLC  and  Wachovia  Bank,
                    National  Association,  as  trustee,  with  respect  to  the
                    indenture dated as of  March 10, 2004,  among  Evergreen and
                    Wachovia Bank, National Association, as trustee, relating to
                    the 5.875% Notes.
  4.4(a)            Third Supplemental Indenture dated as of September 30, 2004,
                    among the Company and  Wachovia Bank,  National Association,
                    as trustee, with respect  to the indenture dated as of March
                    10,  2004,  among  Evergreen  and  Wachovia  Bank,  National
                    Association, as trustee, relating to the 5.875% Notes.
  4.5(a)            Fourth Supplemental  Indenture dated as of November 1, 2004,
                    among the Company,  Pioneer Natural Resources USA,  Inc., as
                    guarantor,  and  Wachovia  Bank,  National  Association,  as
                    trustee, with respect to the indenture dated as of March 10,
                    2004,   among   Evergreen  and   Wachovia   Bank,   National
                    Association, as trustee, relating to the 5.875% Notes.



-------------
(a) filed herewith




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